You have been used to take notice of the sayings of dying men — this is mine: That a life spent in the service of God, and communion with him, is the most comfortable and pleasant life that one can live in the present world.
Not everyone wants to live forever, but every culture has always desired immortality in one way or another. Humans have always believed in the possibility of another life, of a second act. We've also always hoped that there might be a way to avoid dying. The term "cultural-universal" is a complicated one, but I've heard it come up on numerous occasions while researching immortality.